Summary of the hypervelocity weapon system field experiment

Aden, T. C.; Brown, J.; Churchwell, V.D.; Dewer, P.; Juhasz, Arpad A.; Kaplan, Z.; Williams, James

doi:10.1109/20.560088

Cited by 13 publications

(9 citation statements)

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“…There is a great demand for a micro rate sensor in military applications such as for the roll stabilization system or the smart fuse of guided munitions [1]. MEMS sensors and SAW-based sensors are suitable for such harsh environment applications because both sensors generally show the advantages of having inherent hardness, being small in size [2].…”

Section: Introductionmentioning

confidence: 99%

A Novel Micro Rate Sensor using a Surface-Acoustic-Wave (SAW) Delay-line Oscillator

et al. 2007

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A micro rate sensor (MRS) using a SAW oscillator is proposed for extremely high shock military applications. It is based on the SAW gyroscopic effect and consists of a pair of delay-line oscillators for a differential operating scheme. The SAW gyroscopic gain factor in ST-cut quartz not only is derived theoretically but also is verified by experiment. The 9×9 mm 2 SAWMRS was fabricated and loaded into a specially designed LTCC (Low Temperature Co-fired Ceramic) package. We evaluated the performance of the SAWMRS, using a rate table, revealing a sensitivity of 0.431 Hz/deg/s in the angular rates up to 2,000 deg/s and a white noise of 0.55 deg/s/√Hz, respectively. Consequently, the feasibility of the proposed SAWMRS was verified, through a set of performance evaluations, confirming the theoretical predictions.

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Section: Introductionmentioning

confidence: 99%

A Novel Micro Rate Sensor using a Surface-Acoustic-Wave (SAW) Delay-line Oscillator

et al. 2007

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“…During the summer of 1993, the Army successfully tested an electric gun technology that offered potential to perform as a "last ditch" theater ballistic missile defense system (Aden et al 1997). Virtual prototyping was used to evaluate the readiness of the tested technology to provide a near-term, air-transportable, gun configuration (Schaaf, Churchwell, and Baird 1994).…”

Section: Army Electric Gun Examplementioning

confidence: 99%

System concept development with virtual prototyping

Schaaf¹,

Thompson²

1997

Proceedings of the 29th Conference on Winter Simulation - WSC '97

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Virtual prototyping with 3D drawing programs provides a means of rapidly developing system concepts and analyzing them for form, fit, logistics, human factors integration, and general feasibility analysis.The resulting models can be studied, viewed from different angles, and even "entered" by multidisciplinary design teams working in an integrated product team environment. The authors were involved in two separate system configuration developments that benefited tirn an initial virtual prototyping approach. The first example presents the development of an electric gun concept for a ballistic missile defense application. The gun model was based on current technology developments and experiment results, and was constructed to answer the question "what configuration can be assembled in the near term that would be air transportable?" The second example illustrates the development of a small waste remediation facility, and was constructed to provide a configuration baseline fbr study. The process of converting each project's miscellaneous available technical data into a correct high-fidelity model is presented, and key technical insights provided by the virtual prototype are also presented.

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“…The requirements in such applications are as follows: extremely high-shock survivability (up to 65000 g), a wide dynamic range, and a small size. 2,3) Compared with currently available gyroscopes such as rotating wheel, fiber optic, laser, and micromachined gyroscopes, the surface acoustic wave (SAW) gyroscope has unique properties like excellent inherent shock robustness, high sensitivity, very larger dynamic testing range, small size, low cost, simplicity and long working life. 4) There are two types of SAW-based gyroscope reported in the literature.…”

Section: Introductionmentioning

confidence: 99%

A New Micro-rate Sensor Based on Shear Horizontal Surface Acoustic Wave Gyroscopic Effect

Wang¹,

He³

et al. 2010

Jpn. J. Appl. Phys.

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In this paper, we present a new micro-rate sensor based on the shear horizontal surface acoustic wave (SH-SAW) gyroscopic effect. The new SH-SAW propagating along the ST-90°X quartz substrate with heavy metallization exhibits excellent temperature stability, large acoustic velocity, high electromechanical coupling factors, and very small propagation attenuation. The response mechanism of such an SH-SAW micro-rate sensor was established using partial-wave analysis methods. The angular detection sensitivity in the propagation path of SH-SAW was evaluated and the effect of the metal interdigital transducer (IDT) electrode thickness on the sensor performance was also studied, resulting in the realization of the optimized design parameters prior to fabrication. Two SH-SAW delay lines with a reverse direction and an operation of 80 MHz on the same chip are fabricated as the feedback of SAW oscillators. The single-phase unidirectional transducer (SPUDT) was used to structure the delay lines to decrease the insertion loss. The Coriolis force from the external rotation acts on the particles along the SAW propagation path, then a pseudo SAW was induced, and couples with the initial SH-SAW; thus, the SAW velocity was deviated. Meanwhile, the differential oscillation frequency was changed linearly and used to characterize the input angular rate. Then, using the precise rate table, the performance of the fabricated SH-SAW rate sensor was evaluated experimentally. A sensitivity of 1.268 Hz deg-1 s-1 at angular rates of up to 2000 deg s-1, good linearity, and excellent temperature stability are observed.

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Summary of the hypervelocity weapon system field experiment

Cited by 13 publications

References 0 publications

A Novel Micro Rate Sensor using a Surface-Acoustic-Wave (SAW) Delay-line Oscillator

A Novel Micro Rate Sensor using a Surface-Acoustic-Wave (SAW) Delay-line Oscillator

System concept development with virtual prototyping

A New Micro-rate Sensor Based on Shear Horizontal Surface Acoustic Wave Gyroscopic Effect

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